Caterpillar 3500 Marine Engine Parts & Components
Alfa Marine Spare Parts supplies Caterpillar 3500 marine engine parts and components for commercial vessels, marine propulsion systems, auxiliary engines, generator sets and power-generation applications.
The Caterpillar 3500 engine family includes well-known V8, V12 and V16 configurations used in demanding marine and heavy-duty applications. We source genuine, Caterpillar Reman, OEM and replacement components for scheduled maintenance, engine repairs and major overhaul requirements.
Our sourcing capabilities cover Caterpillar 3508, 3512 and 3516 engines, including applicable B and C generations.
For individual engine information, visit our Caterpillar 3508 Marine Engine Parts and Caterpillar 3516 Marine Engine Parts pages.
For our wider engine range, browse Caterpillar Marine Engine Parts.
Need a specific Caterpillar 3500 component or complete overhaul requirement? Request a Quote or email request@alfamarinespareparts.com.
Caterpillar 3500 Engine Series Overview
The Caterpillar 3500 Series is a heavy-duty diesel engine platform developed for applications requiring high power, durability and long operating periods.
The principal engine configurations within the family include:
- Caterpillar 3508 — V8
- Caterpillar 3512 — V12
- Caterpillar 3516 — V16
Later generations include engine designations such as:
- Caterpillar 3508B
- Caterpillar 3508C
- Caterpillar 3512B
- Caterpillar 3512C
- Caterpillar 3516B
- Caterpillar 3516C
These engines share elements of the broader 3500 architecture, but individual components should not automatically be treated as interchangeable between models or generations.
Differences can exist in fuel systems, turbocharger arrangements, cooling systems, engine controls, sensors, cylinder components, emissions equipment and accessory arrangements.
Correct identification should therefore begin with the:
Complete engine model + serial number + serial-number prefix + arrangement number + existing part number
Caterpillar 3500 Series Engine ModelsCaterpillar 3508
The Caterpillar 3508 is the V8 configuration within the Caterpillar 3500 family.
It uses a 170 mm cylinder bore and 190 mm piston stroke, with a displacement of approximately 34.5 litres.
The 3508 platform can be encountered in marine propulsion, auxiliary and generator applications depending on the individual engine configuration.
For detailed information about this engine and available component categories, visit our Caterpillar 3508 Marine Engine Parts page.
Caterpillar 3512
The Caterpillar 3512 is the V12 configuration within the 3500 engine family.
With twelve cylinders, the 3512 provides greater displacement and power capability than the V8 3508 while retaining the principal cylinder dimensions associated with the engine family.
Different generations include the 3512, 3512B and 3512C.
These engines can be encountered in propulsion, auxiliary, generator and other heavy-duty applications.
Fuel-system, turbocharger, cooling and control components can vary considerably between generations and arrangements.
Caterpillar 3516
The Caterpillar 3516 is the V16 configuration within the Caterpillar 3500 family.
It uses the same principal 170 mm bore and 190 mm stroke dimensions associated with the traditional 3500 platform, with a displacement of approximately 69 litres.
The 3516 has been used in marine propulsion, auxiliary and generator applications where substantial continuous power is required.
Different generations include the 3516, 3516B and 3516C.
For detailed information, visit our Caterpillar 3516 Marine Engine Parts page.
Caterpillar 3500 Technical Specifications
The principal cylinder dimensions of the traditional Caterpillar 3500 platform are shared across the 3508, 3512 and 3516 configurations.
Specification350835123516Engine type4-stroke diesel4-stroke diesel4-stroke dieselCylinder arrangementV8V12V16Number of cylinders81216Cylinder bore170 mm170 mm170 mmPiston stroke190 mm190 mm190 mmDisplacementApprox. 34.5 LApprox. 51.8 LApprox. 69 LCoolingLiquid cooledLiquid cooledLiquid cooledEngine familyCaterpillar 3500Caterpillar 3500Caterpillar 3500Typical applicationsMarine / auxiliary / generatorMarine / auxiliary / generatorMarine / auxiliary / generator
Exact engine output, speed, aspiration, compression ratio, dimensions, weight, fuel system and installed equipment depend on the individual engine model, generation, rating and arrangement.
Always verify specifications against the complete engine identification.
Caterpillar 3500 Engine Parts & Components
Alfa Marine Spare Parts can source a broad range of Caterpillar 3500 engine components for maintenance, repairs and overhaul requirements.
Parts requirements can include:
- Pistons
- Piston rings
- Cylinder liners
- Cylinder heads
- Connecting rods
- Main bearings
- Connecting rod bearings
- Crankshaft components
- Camshaft components
- Fuel injectors
- Fuel pumps
- Water pumps
- Oil pumps
- Turbochargers
- Aftercooler components
- Oil coolers
- Filters
- Sensors
- Electrical components
- Gaskets
- Seals
- Complete overhaul components
Because multiple generations exist within the 3500 family, parts should be selected using the individual engine serial number rather than the general 3500 Series designation alone.
Caterpillar 3500 Pistons & Cylinder Liners
Pistons, piston rings and cylinder liners are major components inspected during engine overhaul work.
Depending on the individual engine, requirements can include:
- Complete pistons
- Piston crowns
- Piston ring sets
- Piston pins
- Piston retainers
- Cylinder liners
- Cylinder liner seals
- Liner O-rings
- Connecting rod components
- Related bearings
- Gaskets and seals
Although the 3508, 3512 and 3516 share core architectural characteristics, this does not mean every piston, liner or sealing component is interchangeable across every generation.
Always verify the engine model, serial number and arrangement number.
Caterpillar 3500 Cylinder Head Parts
Cylinder heads and valve-train components can be required during top-end maintenance and complete overhaul work.
We can assist with:
- Complete cylinder heads
- Inlet valves
- Exhaust valves
- Valve guides
- Valve seats
- Valve springs
- Rocker arms
- Rocker components
- Valve bridges
- Push rods
- Cylinder head gaskets
- Seals
- O-rings
Cylinder head assemblies and internal components can vary between engine generations.
For correct identification, provide the existing cylinder-head part number whenever available.
Caterpillar 3500 Fuel System Parts
The fuel-system configuration used across the Caterpillar 3500 family has evolved through different engine generations.
Requirements can include:
- Fuel injectors
- Injector components
- Fuel transfer pumps
- Fuel priming pumps
- Fuel manifolds
- Fuel filters
- Fuel filter bases
- Fuel lines
- Fuel pressure components
- Fuel pressure sensors
- Fuel fittings
- Seals
- O-rings
Fuel-system components should never be selected only because they are described as fitting a Caterpillar 3500 engine.
The exact 3508, 3512 or 3516 model and engine generation must be established first.
For assistance identifying a fuel-system component, Request a Quote.
Caterpillar 3500 Fuel Injectors
Injector requirements can differ considerably between 3500 engine generations and arrangements.
Depending on availability and application, we can assist with:
- Genuine Caterpillar injectors
- Caterpillar Reman injectors
- OEM injectors
- Replacement injectors
- Injector seals
- Injector O-rings
- Related installation components
For an injector enquiry, provide:
Engine model + complete serial number + serial-number prefix + arrangement number + existing injector part number
This is especially important when distinguishing between earlier 3500 engines and later 3500B or 3500C configurations.
Caterpillar 3500 Turbocharger Parts
Turbochargers are an important part of applicable Caterpillar 3500 engine air systems.
Depending on the engine configuration, we can assist with:
- Complete turbochargers
- Caterpillar Reman turbochargers
- Turbocharger cartridges
- Turbine components
- Compressor components
- Bearings
- Seals
- Turbocharger oil lines
- Oil drain components
- Turbocharger gaskets
- Air connections
- Exhaust connections
- Mounting components
The turbocharger arrangement can vary according to engine model, rating and application.
Always provide the existing turbocharger part number or identification plate whenever possible.
Caterpillar 3500 Aftercooler & Air System Parts
Applicable Caterpillar 3500 engines use aftercooling as part of the intake-air system.
Requirements can include:
- Aftercooler cores
- Aftercooler housings
- Air-intake manifolds
- Intake pipes
- Air hoses
- Air filters
- Turbocharger connections
- Clamps
- Gaskets
- Seals
- O-rings
Marine engine arrangements can use different cooling configurations from generator and industrial installations.
The complete engine arrangement should therefore be checked before ordering aftercooler components.
Caterpillar 3500 Cooling System Parts
Cooling-system components are critical for controlling engine temperatures under continuous operating loads.
Depending on engine configuration, we can source:
- Jacket-water pumps
- Auxiliary water pumps
- Sea water pumps
- Water pump components
- Thermostats
- Thermostat housings
- Heat exchanger components
- Aftercooler components
- Oil cooler components
- Coolant pipes
- Cooling hoses
- Temperature sensors
- Gaskets
- Seals
- O-rings
Marine propulsion engines can have different cooling arrangements from auxiliary and generator engines.
Always state the application when requesting cooling-system components.
Caterpillar 3500 Water Pumps
Different engines within the Caterpillar 3500 family can use different water pump assemblies.
Depending on the individual engine and installation, requirements can include:
- Jacket-water pumps
- Auxiliary water pumps
- Sea water pumps
- Pump housings
- Impellers
- Pump shafts
- Bearings
- Mechanical seals
- Drive components
- Gaskets
- O-rings
A pump fitted to a 3508 should not automatically be assumed to fit a 3512 or 3516.
Even engines carrying the same general model designation can use different pump references according to serial number and arrangement.
When requesting a water pump, send:
Engine model + complete serial number + arrangement number + existing pump part number
Need help identifying a pump? Request a Quote.
Caterpillar 3500 Lubrication System Parts
The lubrication system protects major internal components during engine operation.
We can assist with:
- Engine oil pumps
- Oil filters
- Oil filter bases
- Oil coolers
- Oil cooler cores
- Oil pressure regulators
- Oil pressure sensors
- Oil lines
- Oil pipes
- Oil sump components
- Breather components
- Gaskets
- Seals
- O-rings
Oil pump and cooler arrangements can vary according to engine configuration.
Always verify the existing part number when available.
Caterpillar 3500 Filters & Maintenance Components
Routine service components for Caterpillar 3500 engines can include:
- Engine oil filters
- Fuel filters
- Fuel/water separator elements
- Air filters
- Crankcase ventilation components
- Belts
- Thermostats
- Gaskets
- O-rings
- Sealing washers
- Maintenance kits
Maintenance components should be selected according to the individual engine rather than the general 3500 Series designation.
Caterpillar 3500 Exhaust System Parts
Exhaust-system requirements can include:
- Exhaust manifolds
- Exhaust manifold sections
- Exhaust elbows
- Bellows
- Turbocharger exhaust connections
- Exhaust gaskets
- Clamps
- Seals
- Mounting components
Marine exhaust systems can also contain installation-specific components beyond the base engine.
For accurate identification, provide photographs and existing part numbers whenever available.
Caterpillar 3500 Electrical Parts & Sensors
Electrical and electronic systems vary considerably between Caterpillar 3500 engine generations.
Depending on the engine, requirements can include:
- Starter motors
- Alternators
- Wiring harnesses
- Temperature sensors
- Pressure sensors
- Speed sensors
- Level sensors
- Switches
- Relays
- Solenoids
- Electrical connectors
- Electronic control components
- Engine monitoring components
Later engine generations can use different control and sensor systems from earlier mechanically controlled configurations.
Always identify the exact engine model and serial number before ordering electronic components.
Caterpillar 3500 Gaskets & Seals
We can source individual sealing components and complete gasket requirements for applicable Caterpillar 3500 engines.
Components can include:
- Cylinder head gaskets
- Rocker cover gaskets
- Intake manifold gaskets
- Exhaust manifold gaskets
- Turbocharger gaskets
- Water pump gaskets
- Oil cooler seals
- Injector seals
- Cylinder liner seals
- Crankshaft seals
- O-rings
- Complete gasket sets
Gasket kits should be matched to the exact engine arrangement.
Caterpillar 3500 Overhaul Parts
Major overhaul work can require a substantial number of internal and external engine components.
Alfa Marine Spare Parts can assist with Caterpillar 3500 overhaul parts for 3508, 3512 and 3516 engine requirements.
Typical overhaul requirements can include:
- Pistons
- Piston ring sets
- Cylinder liners
- Liner seals
- Piston pins
- Connecting rods
- Main bearings
- Connecting rod bearings
- Thrust components
- Cylinder heads
- Valve components
- Fuel injectors
- Gasket sets
- Crankshaft seals
- Oil pump components
- Water pump components
- Turbochargers
- Aftercooler components
For complete overhaul enquiries, send the complete engine serial number, arrangement number and required parts list.
Submit your requirement through our Request a Quote page.
Caterpillar 3500 Marine Applications
Caterpillar 3500 engines have been used across demanding marine installations.
Depending on model, generation and rating, applications can include:
- Commercial vessels
- Workboats
- Tugboats
- Offshore vessels
- Fishing vessels
- Ferries
- Dredgers
- Service vessels
- Marine propulsion systems
- Auxiliary engines
- Marine generator sets
- Diesel-electric installations
The installed equipment can differ substantially according to vessel type and duty profile.
For this reason, always state whether the engine is being used for propulsion, auxiliary power or generator service.
Caterpillar 3500 Auxiliary & Generator Applications
3500 Series engines are also widely encountered in auxiliary and power-generation installations.
Requirements can arise from:
- Marine generator sets
- Auxiliary engines
- Diesel-electric systems
- Onboard power-generation systems
- Offshore installations
- Commercial vessel generator systems
- Industrial power-generation applications
Generator configurations can use different cooling systems, accessories, controls and equipment from propulsion engines.
Parts should always be matched to the individual engine arrangement.
Caterpillar 3500 Parts Identification
A request for “Caterpillar 3500 parts” is usually not specific enough to identify the correct component.
First establish whether the engine is a:
3508 / 3508B / 3508C
3512 / 3512B / 3512C
3516 / 3516B / 3516C
Then provide:
Engine model:
Complete engine serial number:
Serial-number prefix:
Arrangement number:
Existing part number:
Part description:
Quantity:
Application: Propulsion / Auxiliary / Generator
Required condition:
Delivery destination:
Photographs of the engine identification plate and existing component can also assist with identification.
This information is particularly important for injectors, turbochargers, water pumps, oil pumps, cylinder heads, pistons, liners, sensors and overhaul components.
Send your details through our Request a Quote page or email request@alfamarinespareparts.com.
Caterpillar 3500 vs 3500B
The original Caterpillar 3500 generation and later 3500B engines belong to the same broader engine platform but should not be treated as identical.
Differences can exist in:
- Fuel-system components
- Engine controls
- Sensors
- Turbocharger arrangements
- Cooling-system components
- Cylinder components
- Accessory equipment
- Engine ratings
This applies when comparing engines such as the 3508 and 3508B, 3512 and 3512B, or 3516 and 3516B.
Always verify parts against the complete engine identification.
Caterpillar 3500B vs 3500C
The 3500B and 3500C generations can also use different components and engine-system arrangements.
Differences can involve:
- Fuel injection equipment
- Electronic controls
- Sensors
- Turbochargers
- Cooling components
- Emissions-related equipment
- Electrical systems
- Engine ratings
- Accessory arrangements
Parts described generally as “Caterpillar 3500 Series” should therefore never automatically be considered interchangeable across these generations.
Caterpillar 3508 vs 3512 vs 3516
The easiest distinction between the principal Caterpillar 3500 engine configurations is cylinder count.
3508 — V8
3512 — V12
3516 — V16
The engines share principal architecture and cylinder dimensions, but their displacement, power capability, component quantities and individual engine arrangements differ.
For example, a complete overhaul requirement will naturally contain different quantities of pistons, liners, rings and cylinder-head components according to cylinder count.
For detailed 3508 information, visit Caterpillar 3508 Marine Engine Parts.
For the V16 engine family, visit Caterpillar 3516 Marine Engine Parts.
Genuine, Caterpillar Reman, OEM & Replacement 3500 Parts
Depending on the component and availability, Caterpillar 3500 requirements can be sourced in different supply conditions.
Options can include:
New genuine Caterpillar
Caterpillar Reman
OEM
Replacement / aftermarket
Caterpillar Reman options can be available for selected major components such as injectors, turbochargers, pumps and other assemblies.
Not every component is available in every supply condition.
If a particular option is mandatory, state this clearly when requesting a quotation.
For example:
Genuine Caterpillar required
or:
Caterpillar Reman acceptable
Reman references should always be verified against the applicable new part number and individual engine arrangement.
Worldwide Supply of Caterpillar 3500 Parts
Alfa Marine Spare Parts supplies and sources Caterpillar 3500 engine parts and overhaul components for customers worldwide.
We support:
- Shipowners
- Vessel operators
- Fleet managers
- Marine engineers
- Shipyards
- Repair workshops
- Engine rebuilders
- Generator specialists
- Offshore operators
Requirements can range from filters, sensors and seals to injectors, water pumps, oil pumps, turbochargers, cylinder heads, pistons, liners and complete overhaul packages.
For international enquiries, include your delivery city, country and port.
Browse our wider Caterpillar Marine Engine Parts catalogue for additional Caterpillar engine families.
Why Choose Alfa Marine Spare Parts for Caterpillar 3500 Components?
Accurate identification is particularly important when sourcing components for Caterpillar 3500 engines because multiple engine models, generations, ratings and arrangements exist.
An incorrect injector, turbocharger, pump, piston, liner or gasket kit can delay maintenance or overhaul work.
Alfa Marine Spare Parts can assist with:
- Serial-number based parts identification
- Genuine Caterpillar components
- Caterpillar Reman components
- OEM components
- Replacement parts
- Fuel-system components
- Cooling-system components
- Water pumps
- Oil pumps
- Turbochargers
- Cylinder components
- Gaskets and seals
- Overhaul requirements
- Worldwide supply
Providing complete engine information from the beginning helps reduce the risk of incorrect component selection.
Frequently Asked QuestionsWhat engines are included in the Caterpillar 3500 Series?
The principal engine configurations include the Caterpillar 3508, 3512 and 3516, together with later generations such as the 3508B/C, 3512B/C and 3516B/C.
What is the difference between Caterpillar 3508, 3512 and 3516?
The principal difference is cylinder count:
3508 = V8
3512 = V12
3516 = V16
Their total displacement and power capability therefore differ.
What is the Caterpillar 3500 bore and stroke?
The traditional Caterpillar 3500 platform uses a 170 mm cylinder bore and 190 mm piston stroke.
Can you supply Caterpillar 3500 injectors?
Yes. We can assist with applicable injectors for 3508, 3512 and 3516 engines, including genuine, Caterpillar Reman, OEM and replacement options where available.
The exact injector must be matched to the individual engine.
Can you supply Caterpillar 3500 water pumps?
Yes. We can assist with applicable jacket-water pumps, auxiliary water pumps, sea water pumps and related cooling-system components.
Always provide the engine serial number and existing pump reference.
Can you supply Caterpillar 3500 turbochargers?
Yes. Depending on engine configuration and availability, we can source complete turbochargers and related components.
Can you supply Caterpillar 3500 pistons and liners?
Yes. We can source pistons, piston rings, cylinder liners, liner seals and related internal engine components.
Can you supply Caterpillar 3500 cylinder heads?
Yes. We can assist with complete cylinder heads and individual valve-train components.
Can you supply Caterpillar 3500 overhaul kits?
Yes. We can assist with complete or partial overhaul requirements for applicable Caterpillar 3508, 3512 and 3516 engines.
Send the complete engine serial number, arrangement number and required parts list for verification.
Are Caterpillar 3500, 3500B and 3500C parts interchangeable?
Not automatically.
Fuel systems, electronic controls, turbochargers, cooling components, sensors and other parts can differ between generations.
Can you supply Caterpillar Reman 3500 components?
Yes, where an applicable Caterpillar Reman option exists and is available.
The Reman reference should always be verified against the corresponding new component and engine arrangement.
What information do I need when requesting Caterpillar 3500 parts?
Provide:
Complete engine model + complete serial number + serial-number prefix + arrangement number + existing part number + quantity + application + delivery destination
Photographs can also help when the existing component cannot be identified by part number.
Request Caterpillar 3500 Engine Parts
Looking for Caterpillar 3500 engine components, maintenance spares, Caterpillar Reman parts or complete overhaul requirements?
We can assist with requirements for:
Caterpillar 3508 / 3508B / 3508C
Caterpillar 3512 / 3512B / 3512C
Caterpillar 3516 / 3516B / 3516C
Send us your:
Engine model:
Complete engine serial number:
Serial-number prefix:
Arrangement number:
Part number:
Part description:
Quantity:
Application: Propulsion / Auxiliary / Generator
Required condition: Genuine / Caterpillar Reman / OEM / Replacement
Delivery destination:
For unidentified components, include photographs of the existing component and engine identification plate whenever available.
Our team can assist with requirements ranging from individual filters, injectors and pumps to turbochargers, cylinder heads, pistons, liners and complete Caterpillar 3500 overhaul parts packages.
Email: request@alfamarinespareparts.com
For additional Caterpillar engines, visit Caterpillar Marine Engine Parts.